Slab or brick for driveways



, G.. KONDOLF.

SLAB 0R. BRICKA FOR DRIVEWAYS.

APPLICATloN FILED ocr. 9. v1919..

w, iM/@M Patented May 4, 1920.

GEORGE V. KONDOLF, OF ROCHESTER, NEW YORK.

SLAB OR BRICK FOR DRIVEWAYS.

Specification of Letters Patent.

Patented May 4, 1920.

Application mea october 9, 1919. serial No. 329,562.

To all whom it may concern Be it known that I, GEORGE V. KONDOLF, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Slabs or Bricks for Driveways, of which the following is a specification.

The object of this invention is to provide a new and improved form of slab or brick which is so constructed that a number of them can be tied together Vin series and anchored on the surface of the ground to form a continuous road bed for a driveway for automobiles or other vehicles.

Another object of this invention is to provide a temporary tie rod for each 'series of slabs or bricks, which tie rod is adapted to be laid over the course of the driveway preliminary to the laying of the slabs or bricks.

Another object of this invention isto provide suitable spacing bars for thetie rods and slabs or bricks, to properly space a pair of series of slabs or bricks from each other to form a double track driveway.

Another object of this invention is to provide anchors on the bottom of each of the slabs or bricks with which the slabs or bricks are individually anchored to the tie rod and to the surface of the ground to prevent any lateral shifting of any one of the slabs or bricks. p

These and other objects of this invention will be fully illustrated in the drawings, de-

scribed in the specification and pointed out,

in the claims at the end thereof.

In the accompanying drawing:

Figure 1 is a sectional perspective view of the driveway laid with the slabs or bricks.

Fig. 2 is a bottom plan viewI of aseries of slabs or bricks showing the tie rod that holds them togetheran'd in line with eachv other.

Fig. 3 is a perspective view of the slab or brick provided with a modified formof anchor.

Fig. 4 is a perspective view of the slab or brick provided with another modified form of anchor.

Fig. 5 is a perspective view of a portion of a driveway made up of the slabs or bricks and tied together with a pair of tie rods which in turn are spaced apart and tied together by a spacing rod so as to line up the rails made up of each series of slabs or bricks parallel to each' other, the driveway being viewed from below.

Invthe several figures of the drawing like reference numerals indicate like parts.

Many of the driveways laid for private garages are formed by a pair of parallel rails which Vare spaced apart according to the width of the wheel base of the automobile. It is for such a drive way that the slabs forming the subject matter of this invention are especially adapted although any other common form of driveway may be laid with the aid of these, slabs.

' Each of the slabs or bricks 1 is made up of concrete or other suitable material that can be cast or pressed into the desired shape with suitable reinforcements or binding material embedded therein. The top surface of each of the slabs 1 may either be made flat as shown in Fig. 1 or it may be made slightly crowned as shown in Figs. 3 and 4. Suitably embedded and projecting out from the bottom of each of the slabs 1 are the spikes or anchors 2 and 3. These anchors are properly vspaced apart and are preferably located in the middle of the bottom face of the slab. The anchors 2 and 3 are held in place therein by casting them into the material when the slab is made. If necessary, a tie rod 4 may be used to hold the anchors in their proper places while the material from which the slab is formed is hardening around them. The tie rod 4 may be supplemented by other tie rods which, when provided, form reinforcing bars for the slabs.

` The slabs 1 are tied together' and lined up with one another by means of the tie rod 5 which is preferably made up of a flat strip of metal. This tie rod is provided with a series of holes 6 and 7 which are equally spaced apart at intervals `corresponding to the dista-nce the anchors 2 and 3 are spaced apart on the bottom of each of the slabs 1. The driveway made up of these slabs, is laid by first placing the tie rods 5 on the surface of the ground at the point and in the direction the rails of the driveway are to be laid. For the purpose of spacing these tie rods the required distance from each other, spacing bars 8 may be used and placed either on top or below the tie rod 6. The spacing bars 8 are provided with a pair of holes 9, 9, which holes are adapted to register with one of the holes 6 and 7 driveway.

After the tie rods 5 and spacing rods 8 have been laid over the course which the drive is to follow, the slabs 1 are placed on top of the tie rods 5 in such a way that the anchors 2 and 3 thereof engage the holes 6 and 7 in the tierods 5. In doing so the ends of the slabs 1 abut eachother and form a continuous solid rail or rails.

In order to prevent the individual slabs 1 or a continuous series of them from moving laterally and out of parallel with each other, each of the slabs may be provided with an additional set of anchors 10 and 11 or 10 and 1 1. These last mentioned anchors are preferably provided near the outside of the bottom of the slabs as shown in Figs. 3 and 4;. l

The anchors 10 and 11 shown in Fig. 3 are each formed of a strip of angle iron of in each one of the tie rods 5 used for the which one side together with a portion of the other side is embedded in the slab, while the remaining portion of the side not embedded therein is left to project out at the bottom thereof. A pair of these angle irons can engage therein.

is used for each of the slabs and, if desired, these angle irons may be tied together by means ofthe tie rods 12. The tie rods 12 in addition to spacing and holding they angle irons in place in the slab, form reinforcing rods for the material from which the slab is made.

The anchors 10 and 11 shown in Fig. 4

A are made up and fastened to the slab 1 in the same manner as are the anchors 2 and 3 but while round spikes are shown as form-v ing these anchors, flat stock may be used instead as shown at 14, 15, 16 and 17 at the right of Fig. 2. hen flat stock is used to form the anchors., the holes in the tie rod 5 must be made correspondingly elongated sothat the anchors 14.-, 15, 16 and 17 The anchors 10 and 11 shown in Fig. 3 do not run the full length of the slab' or brick, but stop short of the anchors 2 and 3 in the center of the slab. This is necessary in order that the spacing bars 8 can engage with the anchors 2 and 3.

In laying this driveway, the slabs are placed on the surface of the ground rigidly tied together and properly spaced apart and each individual slab is anchored to the ground as above pointed out. VThis makes the driveway, when complet-ed, project above the groundA a distance equal to the thickness ofthe slabs.l As soon, however, as the driveway is being used the weight of the, automobile or the. other vehicles traveling over the driveway will gradually force theslabs intothe ground so as to make the top surface flush with the surrounding ground. This elminates the laying of; a foundation asA the ground thus compressed forms an ideal foundation itself.`

I claim: f

1 A driveway for automobiles, etc., com prising a series of slabs or bricks, each of saidslabs or bricks being provided withv anchors projectingV out from the bottom thereof, a tie rodhaving holes therein placed below said slabs or bricksV to hold a series of said slabs'or bricks together and in line with one another, said anchors being adapted tov pass through the rholes in said tie rod and project into, the ground.

2. In a` slab for, building driveways the combination of a flat body, a" pair of,Y anchors projecting out from the bottom thereof parallel with the sides of said body, Vand means to7 connect successiveslabs to one another. Y

8.l a slabA for building driveways,4 the combinatioii1 of a flat body, an anchor projecting out from the bottom near each side thereof, said slabs being adapted to be placed on the surface ofthe ground with said anchors projecting intoI it to prevent displacement thereof,

4t. Adriveway comprising. a, rowV of flat slabs having their ends abutting one another, downwardly projecting anchors, one near each, Side of 621011.01?. Said Slabs '150, Pf6? vent their displacement side'wisef and keep said slabs in line with` one another, other anchors near the center of said to prevent their displacement endwise and means with onevanother. i

V5. A driveway coni arising a pairof rows to connect the anchors; Of Consecutive slabs of flat slabs hav'ingt j eir ends abutting one another, downwardly projecting anchors in the bottom of said slabs, tie rods to connect the anchors Volf the consecutive slabs ineach of the rows of slabs comprising Ysaid driveway and'tie rods to connect theVV anchors of oppositely placed slabsin the two rowsv of said driveway.l Y Y Y In testimony whereof I affix my signature. 

